initial commit

Author: windymelt

.gitignore

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+# macOS
+.DS_Store
+
+# sbt specific
+dist/*
+target/
+lib_managed/
+src_managed/
+project/boot/
+project/plugins/project/
+project/local-plugins.sbt
+.history
+.ensime
+.ensime_cache/
+.sbt-scripted/
+local.sbt
+
+# Bloop
+.bsp
+
+# VS Code
+.vscode/
+
+# Metals
+.bloop/
+.metals/
+metals.sbt
+
+# IDEA
+.idea
+.idea_modules
+/.worksheet/

.scalafmt.conf

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+version = "3.5.3"
+runner.dialect = scala3

README.md

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+## qw.scala
+
+This library ports `qw()` syntax from Perl.
+
+You can save time from double quotation hell when coding long `String` list.
+
+### Usage
+
+Usage is very simple!
+
+#### Basic usage
+
+Instead of writing `List[String](...)` directly, you can express it writing space-separated string:
+
+```scala
+import com.github.windymelt.qw.Syntax._
+
+val lis: List[String] = qw"You can save time from double-quotation hell"
+// => List("You", "can", "save", "time", "from", "double-quotation", "hell")
+```
+
+#### Advanced usage
+
+You can embed `String` variable into notation:
+
+```scala
+import com.github.windymelt.qw.Syntax._
+
+val (x, y, z) = ("a", "b", "c")
+
+val lis: List[String] = qw"$a $b $c" // => List("a", "b", "c")
+val lis2: List[String] = qw"$a$b$c"  // => List("a", "b", "c")
+```

build.sbt

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+val scala3Version = "3.2.0"
+
+lazy val root = project
+  .in(file("."))
+  .settings(
+    name := "qw.scala",
+    version := "0.1.0-SNAPSHOT",
+
+    scalaVersion := scala3Version,
+
+    libraryDependencies += "org.scalameta" %% "munit" % "0.7.29" % Test
+  )

project/build.properties

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+sbt.version=1.7.1

src/main/scala/com/github/windymelt/qw/Syntax.scala

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+package com.github.windymelt.qw
+
+object Syntax:
+  extension (sc: StringContext)
+    def qw(args: String*): List[String] =
+      val strings = sc.parts.iterator
+      val expressions = args.iterator
+      var buf = collection.mutable.ListBuffer(strings.next().split(" ")*)
+      while strings.hasNext do
+        buf.append(expressions.next().toString)
+        buf.append(strings.next().toString.split(" ")*)
+      buf.filterNot(_.isEmpty).toList

src/test/scala/com/github/windymelt/qw/SyntaxSuite.scala

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+package com.github.windymelt.qw
+// For more information on writing tests, see
+// https://scalameta.org/munit/docs/getting-started.html
+class SyntaxSuite extends munit.FunSuite {
+  import Syntax._
+
+  test("qw\"\" returns Nil") {
+    assertEquals(qw"", Nil)
+  }
+
+  test("qw\"foo\" returns List(foo)") {
+    assertEquals(qw"foo", List("foo"))
+  }
+
+  test("qw\"foo bar buzz\" returns List(foo, bar, buzz)") {
+    assertEquals(qw"foo bar buzz", List("foo", "bar", "buzz"))
+  }
+
+  test("qw\"$x $y $z\" where x,y,z = a,b,c returns List(a, b, c)") {
+    val (x, y, z) = ("a", "b", "c")
+    assertEquals(qw"$x $y $z", List("a", "b", "c"))
+  }
+
+  test("qw\"$x$y$z\" where x,y,z = a,b,c returns List(a, b, c)") {
+    val (x, y, z) = ("a", "b", "c")
+    assertEquals(qw"$x$y$z", List("a", "b", "c"))
+  }
+}